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Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

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* 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (27 commits)
  rtmutex: Add missing rcu_read_unlock() in debug_rt_mutex_print_deadlock()
  lockdep: Comment all warnings
  lib: atomic64: Change the type of local lock to raw_spinlock_t
  locking, lib/atomic64: Annotate atomic64_lock::lock as raw
  locking, x86, iommu: Annotate qi->q_lock as raw
  locking, x86, iommu: Annotate irq_2_ir_lock as raw
  locking, x86, iommu: Annotate iommu->register_lock as raw
  locking, dma, ipu: Annotate bank_lock as raw
  locking, ARM: Annotate low level hw locks as raw
  locking, drivers/dca: Annotate dca_lock as raw
  locking, powerpc: Annotate uic->lock as raw
  locking, x86: mce: Annotate cmci_discover_lock as raw
  locking, ACPI: Annotate c3_lock as raw
  locking, oprofile: Annotate oprofilefs lock as raw
  locking, video: Annotate vga console lock as raw
  locking, latencytop: Annotate latency_lock as raw
  locking, timer_stats: Annotate table_lock as raw
  locking, rwsem: Annotate inner lock as raw
  locking, semaphores: Annotate inner lock as raw
  locking, sched: Annotate thread_group_cputimer as raw
  ...

Fix up conflicts in kernel/posix-cpu-timers.c manually: making
cputimer->cputime a raw lock conflicted with the ABBA fix in commit
bcd5cff721 ("cputimer: Cure lock inversion").
This commit is contained in:
Linus Torvalds
2011-10-26 16:17:32 +02:00
parent 982653009b 68cc3990a5
commit 3cfef95246
61 changed files with 670 additions and 573 deletions
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20
arch/arm/kernel/traps.c
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@@ -257,7 +257,7 @@ static int __die(const char *str, int err, struct thread_info *thread, struct pt
return ret;
}
static DEFINE_SPINLOCK(die_lock);
static DEFINE_RAW_SPINLOCK(die_lock);
/*
* This function is protected against re-entrancy.
@@ -269,7 +269,7 @@ void die(const char *str, struct pt_regs *regs, int err)
oops_enter();
spin_lock_irq(&die_lock);
raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
if (!user_mode(regs))
@@ -281,7 +281,7 @@ void die(const char *str, struct pt_regs *regs, int err)
bust_spinlocks(0);
add_taint(TAINT_DIE);
spin_unlock_irq(&die_lock);
raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
@@ -324,24 +324,24 @@ int is_valid_bugaddr(unsigned long pc)
#endif
static LIST_HEAD(undef_hook);
static DEFINE_SPINLOCK(undef_lock);
static DEFINE_RAW_SPINLOCK(undef_lock);
void register_undef_hook(struct undef_hook *hook)
{
unsigned long flags;
spin_lock_irqsave(&undef_lock, flags);
raw_spin_lock_irqsave(&undef_lock, flags);
list_add(&hook->node, &undef_hook);
spin_unlock_irqrestore(&undef_lock, flags);
raw_spin_unlock_irqrestore(&undef_lock, flags);
}
void unregister_undef_hook(struct undef_hook *hook)
{
unsigned long flags;
spin_lock_irqsave(&undef_lock, flags);
raw_spin_lock_irqsave(&undef_lock, flags);
list_del(&hook->node);
spin_unlock_irqrestore(&undef_lock, flags);
raw_spin_unlock_irqrestore(&undef_lock, flags);
}
static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
@@ -350,12 +350,12 @@ static int call_undef_hook(struct pt_regs *regs, unsigned int instr)
unsigned long flags;
int (*fn)(struct pt_regs *regs, unsigned int instr) = NULL;
spin_lock_irqsave(&undef_lock, flags);
raw_spin_lock_irqsave(&undef_lock, flags);
list_for_each_entry(hook, &undef_hook, node)
if ((instr & hook->instr_mask) == hook->instr_val &&
(regs->ARM_cpsr & hook->cpsr_mask) == hook->cpsr_val)
fn = hook->fn;
spin_unlock_irqrestore(&undef_lock, flags);
raw_spin_unlock_irqrestore(&undef_lock, flags);
return fn ? fn(regs, instr) : 1;
}